darkSpyro

Pause the trailer at 2:08 and you can see a bunch of the new ones. Looks like the air giant is some kind of wasp or something. There is another that I can't tell if it is water or air by the pedestal but it looks like an albino whale holding an anchor. Another possible water character is on the far right of the page past tree rex and he looks like a water demon or something. On the far left next to the redesign of ignitor, which looks badass, is an earth skylander that looks all white, can't make out what it is, almost looks like a silver dragon. Crusher is in the middle and bouncer is blocking the life skylander, which I can barely make out a tongue sticking out of a small body similar to wrecking ball. Lastly, a female water character holding a staff, she looks like a water pixie or something, is also behind Bouncer.

One more I missed, there is an undead skylander with a spear in the back right, looks pretty cool.

i think the earth giant was a rock monster of some sort with a hammer

Earth giant called Crusher
Proof: //forum.darkspyro.net/spyro/viewposts.php?topic=53506

Read my post I mention crusher, I am talking about a silver dragon to the far left.